I was able to reproduce this issue in your demo here https://bryntum.com/products/gantt/examples/gantt-schedulerpro/
Use below code which just add autoHeight to true, and then delete all tasks apart one.
import { Splitter, WidgetHelper, Gantt, SchedulerPro, ProjectModel } from '../../build/gantt.module.js?474872';
import shared from '../_shared/shared.module.js?474872';
Array(1).fill().map(p => {
return new ProjectModel({
calendar : 'general',
transport : { load : { url : Math.floor(Math.random() * 11) < 5 ? '../_datasets/launch-saas.json' : '../_datasets/tasks-workedhours.json' }},
autoLoad : true,
validateResponse : true
})
}).forEach(project => {
const gantt = new Gantt({
project,
tbar : [
{ type : 'widget', html : 'Zoom:' },
{ ref: 'zoomInButton', icon: 'b-icon-search-plus', tooltip: 'Zoom in', onAction: () => gantt.zoomIn()},
{ ref: 'zoomOutButton', icon: 'b-icon-search-minus', tooltip: 'Zoom out', onAction: () => gantt.zoomOut()}
],
resourceImageFolderPath : '../_shared/images/users/',
appendTo : 'container',
features : {
labels : {
left : { field : 'name', editor : {type : 'textfield'}}
}
},
viewPreset : 'weekAndDayLetter',
columnLines : true,
columns : [
{ type : 'sequence', minWidth : 50, width : 50, text : '', align : 'right', resizable : false },
{ type : 'name', width : 280 },
{ type : 'percent', text : '% Completed', field : 'percentDone', showValue : false, width : 160 },
{ type : 'resourceassignment', text : 'Assigned Resources', showAvatars : true, width : 160 }
],
startDate : '2015-01-01',
endDate: '2030-01-01',
listeners : {
beforeCellEditStart : ({ editorContext }) => editorContext.column.field !== 'percentDone' || editorContext.record.isLeaf
},
// Added
autoHeight: true,
});
});- Screenshot 2024-03-25 045204.png (27.14 KiB) Viewed 47 times
